128154916 has 6 divisors (see below), whose sum is σ = 224271110. Its totient is φ = 64077456.

The previous prime is 128154913. The next prime is 128154937. The reversal of 128154916 is 619451821.

It can be written as a sum of positive squares in only one way, i.e., 114062400 + 14092516 = 10680^2 + 3754^2 .

It is not an unprimeable number, because it can be changed into a prime (128154911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16019361 + ... + 16019368.

Almost surely, 2^128154916 is an apocalyptic number.

It is an amenable number.

128154916 is a deficient number, since it is larger than the sum of its proper divisors (96116194).

128154916 is a wasteful number, since it uses less digits than its factorization.

128154916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32038733 (or 32038731 counting only the distinct ones).

The product of its digits is 17280, while the sum is 37.

The square root of 128154916 is about 11320.5528133568. The cubic root of 128154916 is about 504.1716525002.

The spelling of 128154916 in words is "one hundred twenty-eight million, one hundred fifty-four thousand, nine hundred sixteen".